Ive been doing the Atkins thing, and riding 4 to 8 miles, 4 or 5 nights a week. The roads I ride are mostly hills. You get your legs burning, and have just enough time to recover down the next before you start up again. I find that the hard part is eating as often as you need too. Im just not that hungry. Ive lost 20 pounds in 4 weeks. Im 6'0 and have gone from 206 to 186lb. I eat alot of lean meat, and vegetables. I eat a salad with grilled chicken and light Italian dressing 3 or 4 times a week. I grill alot of chicken and take it to work. I eat low carb power bars for snacks. I eat slim jims if I need something in between meals. I chew sugar free gum for that sweet craving. I eat steaks now and then. I drink nothing but water. I drink from wake-up until sleep. I still wake up dehydrated every morning. You need water to dispose of broken down matter. Drink all you can.